package pta.ch01.ex02;
import java.util.Scanner;
    public class Main {
        public static void main(String[] args){
            Scanner scanner = new Scanner(System.in);
            while (scanner.hasNextInt()){
                int a = scanner.nextInt();
                int b = scanner.nextInt();
                if (Math.abs(a) > 1000){
                    System.out.println("|a|>1000");
                }else{
                    System.out.println(a + b);
                }
            }
            scanner.close();
        }
    }